SpringBoot如何取消内置Tomcat启动并改用外接Tomcat

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-web</artifactId>
  <!-- 去除内嵌tomcat -->
  <exclusions>
    <exclusion>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-tomcat</artifactId>
    </exclusion>
  </exclusions>
</dependency>
<!--添加servlet的依赖-->
<dependency>
  <groupId>javax.servlet</groupId>
  <artifactId>javax.servlet-api</artifactId>
  <version>3.1.0</version>
  <scope>provided</scope>
</dependency>

public static void main(String[] args) {
  SpringApplication.run(Application.class, args);
}
 
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
  return builder.sources(this.getClass());
}